1) Determine the mass, in grams, for 1.25e23 molecules of H₂ 2)How many grams are there in 9.40e25 molecules of H₂?
3)How many grams are there in 1.00e24 molecules of BCl₃?

What is the independent variable in this investigation? mass volume sample number substance density

Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)

Which sentence from holes contains an implied personality trait? stanley and his parents had tried to pretend that he was just going away to camp for a while, just like rich kids do. he'd just been in the wrong place at the wrong time. stanley felt somewhat dazed as the guard unlocked his handcuffs and led him off the bus. stanley nodded to show he understood